Pilot-vehicle analysis of multiaxis tasks

In missions where high c ognitive and managerial requirements are placed on the p ilot, or where failures may significantly degrade one or more air- craft control axes, the pilot must divide his attention among several tasks. The pilot and sys- tem behavior in such divided attention conditions, and the combination of pilot ratings from single to multi-axis c onditions are treated using classical and optimal control models for the human in a com- plementary fashion. It is shown that the crossover frequency and closed-loop system performance for a given axis under divided attention will be less than full attention values while the remnant and the phase m argin will be greater, and that t he model-based trends are consistent with experiment. Also, the optimal control performance index used in the pilot and system behavioral modeling, when "calibrated" w ith s ingle-axis correlations, shows potential f or t he development of subjective rating estimates for multi-axis t asks.

[1]  Walter M. Hollister.  Improved guidance and control automation at the man-machine interface , 1986 .

[2]  Warren F. Clement,et al.  Research on display scanning, sampling, and reconstruction using separate main and secondary tracking tasks , 1970 .

[3]  John D McDonnell,et al.  PILOT RATING TECHNIQUES FOR THE ESTIMATION AND EVALUATION OF HANDLING QUALITIES , 1968 .

[4]  David K. Schmidt,et al.  An optimal control approach to pilot/vehicle analysis and the Neal-Smith criteria , 1983 .

[5]  W. H. Levison,et al.  Studies of multivariable manual control systems - A model for task interference , 1971 .

[6]  Michelle M. Eshow.  Flight investigation of variations in rotorcraft control and display dynamics for hover , 1992 .

[7]  Ezra S. Krendel,et al.  Mathematical Models of Human Pilot Behavior , 1974 .

[8]  David K. Schmidt,et al.  Closed-loop, pilot/vehicle analysis of the approach and landing task , 1987 .

[9]  Seth B. Anderson,et al.  A Look at Handling Qualities of Canard Configurations , 1987 .

[10]  Vernon Allan Dander.  AN EVALUATION OF FOUR METHODS FOR CONVERTING SINGLE AXIS PILOT RATINGS TO MULTI-AXIS PILOT RATINGS USING FIXED BASE SIMULATION DATA , 1962 .

[11]  Ronald A. Hess,et al.  Prediction of Pilot Opinion Ratings Using an Optimal Pilot Model , 1977 .

[12]  David L. Kleinman,et al.  An optimal control model of human response part I: Theory and validation , 1970 .

[13]  G. Stein,et al.  Robustness with observers , 1978, 1978 IEEE Conference on Decision and Control including the 17th Symposium on Adaptive Processes.